[Caja] Enable benchmarking of ES53 code on macro and micro benchmarks (issue2365042)

[jasvir]

Reviewers: metaweta,

Description:
* Adds a cajole and run in ES53 mode to BenchmarkRunner
* Removes the running of benchmarks wrapped in function closures

Please review this at http://codereview.appspot.com/2365042/

Affected files:
  M     tests/com/google/caja/demos/benchmarks/BenchmarkRunner.java